．It is said that the novel Henry had devoted so many years to ______published last week.

——The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job?

——____ Tom have a try?

_________ difficult the task may be, we must finish it on time, because we can’t meet such a precious opportunity _______ we have expected.

The singer hasn’t performed in public for over 5 years. ___, she is very popular with young people.

The headmaster has got a good education ___ so the school is doing well.

I  ____  too much reading.

Would you  ____  help me?

Happy birthday , Alice ! So you have      twenty-one already !

.I saw him ________ at desk, reading.

.The government was believed to be considering _____ a law _____ it a crime to import any kind of weapon.